Marking device with full ejector feed



Sept. 22, 1964 J. R. FRANK 3,149,612

MARKING DEVICE WITH FUEL EJEcIoR FEED Filed April 24, 196s W www mw l lW WW Z. 1bn. 2 n@ w w MW H m Y 5. 6 0 5 4 Z 5 2 Z n/m l MIWMM H TTNEYUnited States Patent O 3,149,612 MARKING DEVICE WITH FULL EJECTOR FEEDlloseph R. Frank, 88-18 192ml St., Hollis, N.Y. Filed Apr. 24, 1963,Ser. No. 275,405 12 Claims. (Cl. 1Z0- 18) This invention relates tomarking devices employing crayons or the like and, particularly inproviding a mounting and feed of crayon for the device which willfacilitate substantially full consumption of the crayon and dispensingthereof. More particularly, the invention deals with a device of theclass described employing means for checking the loading or inwardretraction of the crayon and to facilitate use of relatively longcrayons in the device.

The novel features of the invention will be best understood from thefollowing description, when taken together with the accompanyingdrawing, in which certain embodiments of the invention are disclosedand, in which, the separate parts are designated by suitable referencecharacters in each of the views and, in which:

FIG. 1 is a side and longitudinal sectional view of a marking device,with parts of the construction broken away and parts shown in elevation.

FIG. 2 is a partial view, similar to FIG. l, on an enlarged scale, withparts in a different position.

FIG. 3 is an enlarged section on the line 3 3 of FIG. 1.

FIG. 4 is an enlarged partial section on the line 4-4 of FIG. l.

FIG. 5 is an enlarged section on the line 5-5 of FIG. 1; and

FIG. 6 is an enlarged perspective view of the crayon feed assemblagedetached.

In FIG. 1 of the drawing, I have shown a marking device formed, for themost part, of plastic material and, in said figure, 10 represents thebarrel, having a full thread 11 extending the major portion of thelength thereof and a partial thread 11 extending to the open end. Theopen end of the barrel has a closure cap 12. The other open end of thebarrel has a short plain bore, with a groove 13 therein to receive aspring key pin 14 engaging a short sleeve portion 15 of a conical tip 16of a crayon actuating element.

Extending from the sleeve portion 15 are a pair of long guides 17,crescent-shaped in cross-sectional form, as seen in FIGS. 3 and 5. Itwill, thus, be apparent that 15, 16 and 17 collectively form the saidcrayon actuating element in projecting and retracting a crayon 18gripped and supported in jaws 19 of a feed assemblage 20. ConsideringFIG. 1, it will appear that a new or unused crayon 18 is greater inlength than half the length of the barrel 10, or the element formed bysleeve portion 15, conical tip 16 and guides 17 The guides 17 have outercurved surfaces 21 which fit within the threads 11, note FIGS. l, 3 and5. The guides 17 also have curved inner surfaces 22, in which the splitsleeve 23 forming the gripper jaws 19 and the cylinder portion 24 of theassemblage 20 operate, as also indicated in said figures. The assemblage2t) may be said to comprise the crayon feed member.

The member 20, note FIG. 6, has, at one end of 24, a long rectangularshank 25 with a disc head 26 at its free end. The head is sprung intosleeve 23 through an opening in the split side of sleeve 23 and belowlugs 27 at said split side. At the Vother end of 24 are radiallyextended threaded arms 28, which operate in the elongated slots 29formed between sides of the guide 17 and extend sufficiently to engagethreads 11, 11', as will clearly appear from a consideration of FIGS. 1and 5. The sleeve 23 has inturned bottom flanges 30, note FIGS. 2 and 4,which lie under the head 26, as seen in FIG. 6 of the drawing.

The tip 16 has a bore 31 terminating in the outer end 3,149,612 PatentedSept. 22., 1964 ice of tip 16 in a discharge bore 32, through which thecrayon 18 passes. The reduced bore 32 forms a stop shoulder 33, noteFIG. 2, against which the jaws 19 strike in checking outward movement ofthe sleeve 23. However, the plunger formed by 25 and head 26 can thencontinue to move outwardly through the sleeve 23 against the tension ofa spring 28 mounted on the shank 25 in removing the crayon from grippers19 and in providing a full feed of the crayon 18, as noted in FIG. 2 andcompression of the spring 28 is noted in said figure. A new crayon canbe coupled with the jaws 19 and the member 20 retracted by rotation ofthe barrel 10 in a reverse direction to the normal outward feed of thecrayon. By extending the threads at 11', a long crayon can be mounted inthe device.

Inward movement of member 20 is checked by the arms 28 striking theinner end 12 of the cap 12. This prevents displacement of the arm fromthe slots 29 formed by the guides 17.

From the foregoing, it Will be apparent that, by gripping the tip 16 inthe fingers of one hand, the barrel 10 can be rotated in outward feed ofthe crayon 18 or, if desired, the tip 16 can be rotated and the barrelheld stationary. It will be understood that the cap 12 can have a rightfrictional fit on the barrel and be forcibly removed if, at any time, itis deemed desirable to remove the feed member 20 for cleaning or otherpurposes. Extension of the threads, as at 11', will permit the member tobe fed to the open end normally closed by the cap 12 for free removal ofthe member 20.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A marking device of the character defined comprising an elongatedbarrel having a longitudinal threaded bore, a crayon actuating elementmounted in one end of the bore and having a conical tip projecting atsaid end of the barrel, said element extending the major portion of thelength of the barrel, a crayon feed member keyed to and movablelongitudinally of said element and having means operatively engaging thethreads of said bore, said member in its entirety operating within saidelement, said member having means engaging and supporting a crayonthereon in feed of a crayon through a discharge aperture at the outerend of the tip of said element, an unused crayon being greater than halfthe length of the barrel and said element, the means of said memberbeing tensionally supported on a shank of said member forming theplunger of the member, and means on the tip of said element checkingoutward movement of the crayon supporting means, while permittingcontinued feed of the plunger of said member for substantially fullprojection of the crayon through the discharge aperture of said tip.

2. A device as defined in claim l, wherein the barrel includes a partialthread extending to the other end thereof for full feed of said memberlongitudinally of the barrel.

3. A device as defined in claim 2, wherein said last named end of thebarrel includes a cap forming a closure for the barrel.

4. A device as defined in claim 3, wherein the inner end of the capforms means checking retraction movement of said member in the barrel.

5. A device as defined in claim l, wherein said element includes asleeve portion adjacent the tip, interengaging means between the sleeveportion and the barrel to retain said element against displacement fromthe barrel, and said element including a pair of long guides generallycrescent-shaped on form and providing at opposed sides thereoflongitudinally extending slots.

6. A device as defined in claim 5, wherein said member includes at oneend radially extending threaded arms 3 operating in the slots of saidelement in keying said member against rotation.

7. A device as dened in claim 1, wherein the plunger of said memberincludes a head at its free end, and said tensional means comprises acoil spring normallyA supporting the crayon engaging means of saidmember adjacent said head.

8. In marking devices of the character described, a barrel, a crayonactuating element mounted in and extending longitudinally of a bore ofthe barrel and includingy a tip projecting from one end of 'the barrel,means keying the element against displacement from the barrel whilepermitting relative rotation of the barrel and element one with respectto the other, a crayon supporting and feed member mounted in and keyedto said element for movement longitudinally thereof, said member and thebore of the barrel having interengaging means for feed of the member inboth directions longitudinally of the barrel in rotation of the barreland element one with respect to the other, saidmember including means atone end for gripping a crayon, and the member having a plunger movablerelatively to said last named means against ltensional means supportedon said member in displacing a crayon from the gripper means andextension of substantially the entire crayon through a dischargeaperture in said, tip.

9. A device as dened in claim 8, wherein said plunger includes a headoperating in the discharge aperture of said tip.

10. A device as defined in claim 9, wherein said gripper means comprisesa split sleeve mounted on the plunger of said member, and said sleeveincluding means engaging the head of said plunger to retain said grippermeans against displacement from the plunger.

11. A device as dened in claim 8, wherein the interengaging meansbetween said member and barrel comprises threaded portions on the otherend of said member engaging threads extending longitudinally of themajor portion of the bore of said barrel.

12. A device as defined in claim 8, wherein said tip inwardly of thedischarge aperture includes means engaging said crayon gripper means inretaining the same against movement in independent operation of theplunger relatively to said gripper means.

References Cited in the le of this patent UNITED STATES PATENTS1,441,600 Pollak Jan. 9, 1923 1,509,255 Pollak Sept. 23, 1924 1,515,615Pollak Nov. 18, 1924 2,818,045V Smith Dec. 31, 1957

1. A MARKING DEVICE OF THE CHARACTER DEFINED COMPRISING AN ELONGATEDBARREL HAVING A LONGITUDINAL THREADED BORE, A CRAYON ACTUATING ELEMENTMOUNTED IN ONE END OF THE BORE AND HAVING A CONICAL TIP PROJECTING ATSAID END OF THE BARREL, SAID ELEMENT EXTENDING THE MAJOR PORTION OF THELENGTH OF THE BARREL, A CRAYON FEED MEMBER KEYED TO AND MOVABLELONGITUDINALLY OF SAID ELEMENT AND HAVING MEANS OPERATIVELY ENGAGING THETHREADS OF SAID BORE, SAID MEMBER IN ITS ENTIRETY OPERATING WITHIN SAIDELEMENT, SAID MEMBER HAVING MEANS ENGAGING AND SUPPORTING A CRAYONTHEREON IN FEED OF A CRAYON THROUGH A DISCHARGE APERTURE AT THE OUTEREND OF THE TIP OF SAID ELEMENT, AN UNUSED CRAYON BEING GREATER THAN HALFTHE LENGTH OF THE BARREL AND SAID ELEMENT, THE MEANS OF SAID MEMBERBEING TENSIONALLY SUPPORTED ON A SHANK OF SAID MEMBER FORMING THEPLUNGER OF THE MEMBER, AND MEANS ON THE TIP OF SAID ELEMENT CHECKINGOUTWARD MOVEMENT OF THE CRAYON SUPPORTING MEANS, WHILE PERMITTINGCONTINUED FEED OF THE PLUNGER OF SAID MEMBER FOR SUBSTANTIALLY FULLPROJECTION OF THE CRAYON THROUGH THE DISCHARGE APERTURE OF SAID TIP.